CN204760018U - Micropore honeycomb sound absorbing structure - Google Patents
Micropore honeycomb sound absorbing structure Download PDFInfo
- Publication number
- CN204760018U CN204760018U CN201520454977.0U CN201520454977U CN204760018U CN 204760018 U CN204760018 U CN 204760018U CN 201520454977 U CN201520454977 U CN 201520454977U CN 204760018 U CN204760018 U CN 204760018U
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- sound absorbing
- ultramicro
- micropore
- sound absorption
- honeycomb
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- Expired - Fee Related
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model provides a micropore honeycomb sound absorbing structure which the outer branch of maybe super little perforated sound absorbing plate and perforated plate, is the keriotheca between super little perforated sound absorbing plate and perforated plate, is equipped with the through -hole of asymmetric gradual change on the super microperforated panel. The utility model discloses a micropore honeycomb sound absorbing structure has better acoustic absorption performance and wideer sound absorption frequency characteristic, and this micropore honeycomb sound absorbing structure not only can be used to the naval vessel field, still can be used to building and other fields.
Description
Technical field
The utility model relates to a kind of sound absorption structure, more specifically a kind of micropore honeycomb sound absorption structure.
Background technology
At present, naval vessel acoustic absorbant is mainly divided into two classes: glass wool aluminium sheet and aluminium honeycomb.
The structure of glass wool aluminium sheet as shown in Figure 1, is be provided with the glass wool 10 of porous as acoustic absorbant in aluminum veneer 12 and aluminium perforated plate 11 therebetween.The major advantage of glass wool is: sound absorbing capabilities is relatively better.Major defect is: the acoustical absorption coefficient of porosint generally improves the acoustically effective of its low frequency along with the increase of thickness, and little to high frequency effect.But the thickness of porosint is increased to a certain degree, the raising of acoustically effective is just not obvious.In addition, glass wool environmental-protecting performance is poor, and this structural strength is poor.
The structure of aluminium honeycomb as shown in Figure 2, is be folded with aluminium honeycomb 13 between aluminum veneer 12 and aluminium perforated plate 11.The major advantage of aluminium honeycomb: intensity is high, good environmental protection.Major defect: aluminium honeycomb is not conventional porosint, hole is too large, and sound absorbing capabilities is poor.
Utility model content
The purpose of this utility model is to provide a kind of micropore honeycomb sound absorption structure, to improve the defect existed in known technology.
For achieving the above object, the micropore honeycomb sound absorption structure that the utility model provides, its skin is ultramicro acoustic board and perforated plate respectively, and be honeycomb between ultramicro acoustic board and perforated plate, ultramicro plate is provided with the through hole of asymmetrical gradual change.
In described micropore honeycomb sound absorption structure, the aperture of the minimum vias of gradual change is 0.04mm.
In described micropore honeycomb sound absorption structure, ultramicro acoustic board and perforated plate are aluminium ultramicro acoustic board and aluminium perforated plate respectively.
In described micropore honeycomb sound absorption structure, honeycomb is aluminium honeycomb.
The micropore honeycomb sound absorption structure that the utility model provides has better sound absorbing capabilities and wider sound absorption frequency characteristic, and this micropore honeycomb sound absorption structure not only can be used for field, naval vessel, also can be used for building and other field.
The micropore honeycomb sound absorption structure that the utility model provides is light weight, nontoxic, fire prevention, waterproof, anti-salinity, dust-proof, high-dirt-resistance, life-span long, high electromagnetic sound shielding.
Accompanying drawing explanation
Fig. 1 is the organigram of known glass wool aluminium sheet.
Fig. 2 is the organigram of known aluminium honeycomb.
Fig. 3 is micropore honeycomb sound absorption structure schematic diagram of the present utility model.
Fig. 4 is the partial enlarged drawing of Fig. 3 vertical view, shows the through hole of the asymmetrical gradual change that ultramicro acoustic board is offered.
Symbol description in accompanying drawing
1 ultramicro acoustic board, 2 perforated plates, 3 honeycombs, the large aperture of through hole on 4a ultramicro acoustic board, the small-bore of through hole on 4b ultramicro acoustic board, 10 glass wools, 11 aluminium perforated plates, 12 aluminum veneers, 13 aluminium honeycombs.
Embodiment
Referring to Fig. 3, is the schematic diagram of micropore honeycomb sound absorption structure of the present utility model.
Micropore honeycomb sound absorption structure of the present utility model is folded with honeycomb 3 between ultramicro acoustic board 1 and perforated plate 2.Ultramicro acoustic board 1, connection between perforated plate 2 and honeycomb 3 adopt known thermoplastic processes.
According to a specific embodiment of the present utility model, ultramicro acoustic board 1 is aluminium ultramicro acoustic board, and perforated plate 2 is aluminium perforated plate, and honeycomb 3 is aluminium honeycomb.
Refer to Fig. 4, ultramicro acoustic board 1 of the present utility model offers several through holes, these through holes are asymmetrical gradual change through hole, namely the large aperture 4a of partial through holes and the small-bore 4b of partial through holes is the same face at ultramicro acoustic board, in other words, namely the same face of ultramicro acoustic board there is large aperture 4a also have small-bore 4b, and in erratic arrangement.In a preferred version of the present utility model, the minimum-value aperture 4b of gradual change through hole is 0.04mm.
Micropore honeycomb sound absorption structure of the present utility model, has wide sound sucting band, lightweight, high strength, fire prevention, the multiple advantage such as nontoxic.Have better sound absorbing capabilities and wider sound absorption frequency characteristic, this micropore honeycomb sound absorption structure not only can be used for field, naval vessel, also can be used for building and other field.
Claims (4)
1. a micropore honeycomb sound absorption structure, is characterized in that, skin is ultramicro acoustic board and perforated plate respectively, is keriotheca between ultramicro acoustic board and perforated plate, and ultramicro plate is provided with asymmetrical gradual change through hole.
2. micropore honeycomb sound absorption structure according to claim 1, is characterized in that, the minimum-value aperture of gradual change through hole is 0.04mm.
3. micropore honeycomb sound absorption structure according to claim 1, is characterized in that, ultramicro acoustic board and perforated plate are aluminium ultramicro acoustic board and aluminium perforated plate respectively.
4. micropore honeycomb sound absorption structure according to claim 1, it is characterized in that, keriotheca is aluminum honeycomb panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520454977.0U CN204760018U (en) | 2015-06-29 | 2015-06-29 | Micropore honeycomb sound absorbing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520454977.0U CN204760018U (en) | 2015-06-29 | 2015-06-29 | Micropore honeycomb sound absorbing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204760018U true CN204760018U (en) | 2015-11-11 |
Family
ID=54474700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520454977.0U Expired - Fee Related CN204760018U (en) | 2015-06-29 | 2015-06-29 | Micropore honeycomb sound absorbing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204760018U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863921A (en) * | 2016-12-19 | 2017-06-20 | 北京卫星制造厂 | A kind of sound absorbing-insulating structure |
| CN108954433A (en) * | 2018-07-14 | 2018-12-07 | 佛山市云米电器科技有限公司 | A kind of through-hole presses the multi-frequency noise filtering kitchen ventilator of arrangement area distribution |
| CN109272980A (en) * | 2018-11-01 | 2019-01-25 | 中国船舶重工集团公司第七〇四研究所 | Soldering type slit honeycomb sound absorption structure |
-
2015
- 2015-06-29 CN CN201520454977.0U patent/CN204760018U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106863921A (en) * | 2016-12-19 | 2017-06-20 | 北京卫星制造厂 | A kind of sound absorbing-insulating structure |
| CN106863921B (en) * | 2016-12-19 | 2019-05-24 | 北京卫星制造厂 | A kind of sound absorbing-insulating structure |
| CN108954433A (en) * | 2018-07-14 | 2018-12-07 | 佛山市云米电器科技有限公司 | A kind of through-hole presses the multi-frequency noise filtering kitchen ventilator of arrangement area distribution |
| CN109272980A (en) * | 2018-11-01 | 2019-01-25 | 中国船舶重工集团公司第七〇四研究所 | Soldering type slit honeycomb sound absorption structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20180629 |